CN218833334U - Anesthesia respirator gas circuit with fixed volume cavity - Google Patents
Anesthesia respirator gas circuit with fixed volume cavity Download PDFInfo
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- CN218833334U CN218833334U CN202320511856.XU CN202320511856U CN218833334U CN 218833334 U CN218833334 U CN 218833334U CN 202320511856 U CN202320511856 U CN 202320511856U CN 218833334 U CN218833334 U CN 218833334U
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Abstract
The utility model provides an anesthesia respirator gas circuit with fixed volume chamber, the recess integration that the anesthesia respirator gas circuit formed through the inner wall interval of each other is between the upper cover plate and the lower cover plate in the anesthesia respirator. The groove between the upper cover plate and the lower cover plate is machined and formed through a CNC integrated machining technology. The stability and the gas tightness of structure have further been ensured for the device has good atmospheric pressure stability.
Description
Technical Field
The utility model relates to the technical field of gas circuit structures of anesthesia ventilators, in particular to a gas circuit of an anesthesia ventilator with a fixed volume cavity.
Background
An anesthetic breathing circuit is an important component of an anesthesia machine, through which carbon dioxide carried in gas exhaled by a patient is filtered, leaving gas containing anesthetic and a small portion of oxygen to be re-introduced into the lungs of the patient, to save consumption of anesthetic and oxygen, while avoiding repeated inhalation of carbon dioxide by the patient. Currently, commercially available anesthesia machines commonly employ a breathing circuit system having a bellows. The gas exhaled by the patient firstly enters a folding bag in the air box, then is pressed into the carbon dioxide absorption tank by the driving gas, is filtered by the carbon dioxide absorbent (such as the sodium lime) and then is inhaled into the lungs of the patient again. Such breathing circuits with bellows have the following disadvantages: the occupied space is large; because the folding bag is made of elastic material, the patient must overcome the gravity of the folding bag and the balance plate for stably lifting the folding bag and the elasticity of the folding bag when exhaling. And the more the gas filled in the folded bag, the larger the elastic force is, so the larger the resistance which needs to be overcome when the patient exhales is, which is not beneficial to the rapid exhalation of the patient. The gas circuit of the anesthesia respirator needs the gas circuit structure to connect due to the complex structure of the gas circuit, and the plane area of the integrated pipeline is too large due to the complex structure of the gas circuit in the existing pipeline connection.
Therefore, a need exists for an anesthesia ventilator circuit with a fixed volume chamber that addresses the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides an anesthesia respirator gas circuit with fixed volume chamber, this anesthesia respirator gas circuit is used for solving the background art, the too big technical problem of plane area at the integrated pipeline place that anesthesia respirator gas circuit structure complicacy leads to. The utility model discloses a concrete technical scheme as follows:
anesthesia respirator gas circuit with fixed volume chamber, anesthesia respirator gas circuit includes: the first communicating cavity, the second communicating cavity, the third communicating cavity and the push type volume cavity;
the first communicating cavity, the second communicating cavity, the third communicating cavity and the push type volume cavity are integrated in a contact plane of an upper cover plate and a lower cover plate of the anesthesia respirator through a groove between the upper cover plate and the lower cover plate;
the push-type volume cavity is arranged in the middle of the contact plane, the first communication cavity is arranged at the upper part of the contact plane where the push-type volume cavity is located, one end of the first communication cavity is communicated with the outside through the upper cover plate, and the other end of the first communication cavity is communicated with a left port of the push-type volume cavity; the second communicating cavity is arranged at the left part of the contact plane where the reciprocating type volume cavity is located; the third communicating cavity is arranged at the right lower part of the contact plane where the push type volume cavity is located, one end of the third communicating cavity is communicated with the outside through the upper cover plate, and the other end of the third communicating cavity is communicated with the right port of the push type volume cavity.
Preferably, the anesthesia respirator gas circuit is further provided with: an air suction port and an air suction one-way valve;
the air suction port is arranged at the air vent at the lower end of the second communication cavity, and the air suction one-way valve is arranged between the second communication cavity and the air suction port, so that fresh air flows into the air suction port through the air suction one-way valve and enters the lung of the patient through the air suction port.
Preferably, the anesthesia respirator gas circuit is further provided with: an exhalation port and an exhalation one-way valve;
the expiration port is arranged at the vent at the lower end of the third communicating cavity, and the expiration one-way valve is arranged between the third communicating cavity and the expiration port, so that the gas expired by the patient flows into the push-type volume cavity through the expiration one-way valve.
Preferably, the anesthesia respirator is further provided with: a fourth communicating chamber;
the fourth communicating cavity is arranged between the second communicating cavity and the third communicating cavity, is positioned at the lower end of the push type volume cavity, and is separated from the second communicating cavity and the third communicating cavity through inner walls.
Preferably, the anesthesia respirator is further provided with: an APL valve; the APL valve is arranged at the upper end of the fourth communication cavity.
Preferably, the anesthesia respirator gas circuit is further provided with: a manual ball connector;
the manual ball connecting port is connected with the lower end of the fourth communicating cavity and is used for connecting a manual ball.
Preferably, the anesthesia respirator gas circuit is further provided with: a manual and automatic switch;
the manual and automatic switch is arranged between the first communication cavity and the push type volume cavity and is used for communicating the first communication cavity and the push type volume cavity.
Preferably, the anesthesia respirator gas circuit is further provided with: a fresh gas inlet;
the fresh gas inlet is arranged at the vent at the upper end of the second communication cavity, and fresh gas enters the second communication cavity through the fresh gas inlet.
Preferably, the upper cover plate is provided with a pressure sampling port A, an oxygen sampling port, a pressure sampling port B and a pressure sampling port C;
the pressure sampling port A, the pressure sampling port B and the pressure sampling port C are used for acquiring gas pressures at different positions in a gas circuit of the anesthesia respirator, and the oxygen sampling port is used for acquiring oxygen content at a preset position in the gas circuit of the anesthesia respirator.
Preferably, the anesthesia respirator gas circuit is further provided with: an absorption tank inlet and an absorption tank outlet;
the absorption tank inlet is arranged in the third communicating cavity, the absorption tank outlet is arranged in the second communicating cavity, gas in the third communicating cavity enters the absorption tank through the absorption tank inlet, the absorption tank absorbs carbon dioxide, the gas is discharged from the absorption tank outlet, and the discharged gas enters the second communicating cavity through the absorption tank outlet.
The utility model provides an anesthesia respirator gas circuit with fixed volume chamber, the recess integration that the anesthesia respirator gas circuit formed through the inner wall interval of each other is between the upper cover plate and the lower cover plate in the anesthesia respirator. The groove between the upper cover plate and the lower cover plate is machined and formed through a CNC integrated machining technology. The stability and the gas tightness of structure have further been ensured for the device has good atmospheric pressure stability.
Drawings
FIG. 1 is a perspective view of the gas circuit of an anesthetic breathing apparatus with a fixed volume chamber provided by the present invention;
FIG. 2 is a gas circuit structure diagram of the gas circuit of the anesthesia respirator with a fixed volume cavity provided by the present invention;
wherein, 100, an upper cover plate; 200. a lower cover plate; 300. a manual and automatic switch; 401. an air suction check valve; 402. an expiratory check valve; 403. an APL valve; 500. an absorption tank; 601. a pressure sampling port A; 602. an oxygen sampling port; 603. a pressure sampling port B; 604. a pressure sampling port C; 700. a push-type volume chamber; 801. a first communicating chamber; 802. a second communicating chamber; 803. a third communicating chamber; 804. a fourth communicating chamber; 901. a drive gas inlet; 902. a fresh gas inlet; 903. an outlet of the absorption tank; 904. an absorber tank inlet; 905. an air suction port; 906. an exhalation port; 110. manual ball connecting mouth.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Specific example 1:
the utility model provides an anesthesia respirator gas circuit with fixed volume chamber, this anesthesia respirator gas circuit is used for solving the background art, the too big technical problem of plane area at the integrated pipeline place that anesthesia respirator gas circuit structure complicacy leads to. The utility model discloses a concrete technical scheme as follows:
anesthesia respirator gas circuit with fixed volume chamber, anesthesia respirator gas circuit includes: a first communicating cavity 801, a second communicating cavity 802, a third communicating cavity 803 and a push type volume cavity 700;
the first communicating cavity 801, the second communicating cavity 802, the third communicating cavity 803 and the compound volume cavity 700 are integrated in the contact plane of the upper cover plate 100 and the lower cover plate 200 through a groove between the upper cover plate 100 and the lower cover plate 200 of the anesthesia respirator;
the push-type volume chamber 700 is arranged at the middle position of the contact plane, the first communication chamber 801 is arranged at the upper position of the contact plane where the push-type volume chamber 700 is arranged, one end of the first communication chamber 801 is communicated with the outside through the upper cover plate 100, and the other end is communicated with the left port of the push-type volume chamber 700; the second communicating chamber 802 is disposed at a left position of a contact plane where the push-type volume chamber 700 is located; the third communicating chamber 803 is disposed at a lower right position of a contact plane where the push-type volume chamber 700 is located, and one end of the third communicating chamber 803 is communicated with the outside through the upper cover plate, and the other end is communicated with a right port of the push-type volume chamber 700.
In this embodiment, in order to further reduce the volume of the anesthetic breathing apparatus, each pipeline communicating the air path of the anesthetic breathing apparatus is integrated between the upper cover plate 100 and the lower cover plate 200. The upper cover plate 100 is processed to form a groove, and then the upper cover plate 100 is matched with the lower cover plate 200, so that the groove forms a sealed cavity, and an air channel is formed. The primary air path includes the push-to-volume chamber 700 and the communicating chamber. The air passage channels are mutually separated by the inner wall. The push-type volume 700 occupies a major position of the upper cover plate 100, and the push-type volume 700 has a zigzag-shaped structure. As shown in fig. 2, the push-type volume chamber 700 has a left end connected to the first communicating chamber 801 and a right end connected to the third communicating chamber 803. The upper end of the second communicating chamber 802 is disposed at the upper end of the upper cover plate 100, the lower end is disposed at the lower end of the lower cover plate 200, and the second communicating chamber 802 is disposed at the leftmost end.
Fresh gas enters the patient's lungs through the second communication chamber 802, the inlet port 905. After breathing through the lungs, the exhaled gas enters the third communicating chamber 803 through the exhalation port 906. The third communicating chamber 803 has an absorber inlet 904 therein, and the expired gas with carbon dioxide enters the absorber through the absorber inlet 904, and after carbon dioxide is absorbed in the absorber, the gas is discharged from the absorber outlet 903. The discharged gas enters the second communicating chamber 802. In the second communicating chamber 802, the expelled gas, along with the replenished gas, re-enters the patient's lungs. To this end, one breathing cycle is completed.
Preferably, the anesthesia respirator is further provided with: an intake port 905 and an intake check valve 401; the air inlet 905 is arranged at the lower end air vent of the second communication cavity 802, and the air suction one-way valve 401 is arranged between the second communication cavity 802 and the air inlet 905, so that the fresh air flows into the air inlet 905 through the air suction one-way valve 401 and enters the lung of the patient through the air inlet 905.
In this embodiment, an inhalation check valve 401 is provided between the second communicating chamber 802 and the inhalation port 905 in order to allow the gas to flow along a predetermined route and prevent the gas from flowing backward and injuring the patient. So that the gas can flow only from the second communication chamber 802 to the suction port 905.
Preferably, the anesthesia respirator gas circuit is further provided with: an exhalation port 906, an exhalation one-way valve 402; the exhalation port 906 is disposed at the lower vent of the third communicating chamber 803, and the exhalation one-way valve 402 is disposed between the third communicating chamber 803 and the exhalation port 906, so that the gas exhaled by the patient flows into the compound volume chamber 700 through the exhalation one-way valve 402.
In this embodiment, the expiratory check valve 402 is arranged to allow the gas to flow in a predetermined direction.
Preferably, the anesthesia respirator gas circuit is further provided with: a fourth communication chamber 804; the fourth communicating chamber 804 is disposed between the second communicating chamber 802 and the third communicating chamber 803, is located at the lower end of the push-type volume chamber 700, and is separated from the second communicating chamber 802 and the third communicating chamber 803 by an inner wall.
In this embodiment, in order to make the air passage structure of the upper cover plate 100 more compact, the fourth communication chamber 804 is disposed between the second communication chamber 802 and the third communication chamber 803.
Preferably, the anesthesia respirator gas circuit is further provided with: an APL valve 403; the APL valve 403 is arranged at the upper end of the fourth communication cavity 804.
In this embodiment, the exhalation check valve 402, the inhalation check valve 401, and the APL valve 403 are arranged in parallel.
Preferably, the anesthesia respirator gas circuit is further provided with: a manual ball connector 110; the manual ball connecting port 110 is connected with the lower end of the fourth communicating cavity 804, and the manual ball connecting port 110 is used for connecting a manual ball.
Preferably, the anesthesia respirator gas circuit is further provided with: a manual/automatic switch 300; the manual/automatic switch 300 is disposed between the first communicating cavity 801 and the push-type volume cavity 700, and the manual/automatic switch 300 is used for communicating the first communicating cavity 801 and the push-type volume cavity.
Preferably, the anesthesia respirator gas circuit is further provided with: a fresh gas inlet 902; the fresh gas inlet 902 is arranged at the upper end vent of the second communication cavity 802, and fresh gas enters the second communication cavity 802 through the fresh gas inlet 902.
Preferably, the upper cover plate 100 is provided with a pressure sampling port a 601, an oxygen sampling port 602, a pressure sampling port B603 and a pressure sampling port C604; the pressure sampling port A601, the pressure sampling port B603 and the pressure sampling port C604 are used for acquiring gas pressure at different positions in the gas circuit of the anesthesia respirator, and the oxygen sampling port 602 is used for acquiring oxygen content at a preset position in the gas circuit of the anesthesia respirator.
Preferably, the anesthesia respirator gas circuit is further provided with: an absorber inlet 904, an absorber outlet 903; the canister inlet 904 is provided in the third communicating chamber 803, the canister outlet 903 is provided in the second communicating chamber 802, the gas in the third communicating chamber 803 enters the canister 500 through the canister inlet 904, the gas is discharged from the canister outlet 903 after the carbon dioxide is absorbed in the canister 500, and the discharged gas enters the second communicating chamber 802 through the canister outlet 903.
Specific example 2:
as shown in fig. 1, the anesthetic breathing apparatus circuit with a fixed volume chamber has: a push-type volume chamber 700, the interior of which forms a tortuous gas passage, the volume formed by these passages being large enough to completely contain all the gas exhaled by the patient; a manual switch 300 which can switch the anesthesia machine between a machine control mode and a manual mode; an inhalation check valve 401 and an exhalation check valve 402 which can make the gas flow only in one direction and prevent the gas from flowing in the reverse direction; an APL valve 403, which is a safety valve, capable of releasing gas when the pressure in the breathing circuit reaches a set value, so that the pressure in the lungs of the patient is not too high, thereby ensuring the life safety of the patient; and an absorption tank 500 filled with soda lime capable of absorbing carbon dioxide therein to filter out carbon dioxide exhaled from the patient sufficiently to prevent carbon dioxide re-inhalation.
As shown in fig. 2, the anesthetic breathing apparatus air path with a fixed volume cavity is composed of a volume cavity between the upper cover plate 100 and the lower cover plate 200, and includes a first communicating cavity 801, a second communicating cavity 802, a third communicating cavity 803, a fourth communicating cavity 804, and a push-type volume cavity 700. In addition anesthesia breathing machine gas circuit still includes various entrances and valve bodies be connected with the volume chamber, specifically includes: a driving gas inlet 901, a fresh gas inlet 902, a manual-automatic switch 300, an inspiration one-way valve 401, an expiration one-way valve 402, an APL valve 403, an absorption tank inlet 904 and an absorption tank outlet 903.
The anesthetic breathing apparatus is provided with an upper cover plate 100 and a lower cover plate 200, and the upper cover plate 100 and the lower cover plate 200 are plate-shaped cuboids. The respective contact surface of upper cover plate 100 and lower cover plate 200 is provided with the recess, and the recess of upper cover plate 100 and the recess of lower cover plate 200 correspond the setting, and after upper cover plate 100 and the laminating of lower cover plate 200, the cavity that can supply the gas transport is formed to the recess that corresponds. Since the grooves are provided on the respective contact surfaces of the upper and lower cover plates 100 and 200, the cavities formed by splicing the grooves are all in the same plane, which is called a contact plane. The contact plane is a rectangular plane, the direction of the long side is called transverse direction, and the direction of the short side is called longitudinal direction.
The push-type volume 700 is disposed at a middle position of the contact plane and occupies a large area. The push-type volume chamber 700 has a zigzag longitudinal folding structure, the first communicating chamber 801 is disposed at an upper position of a contact plane where the push-type volume chamber 700 is located, one end of the first communicating chamber 801 is communicated with the outside through the upper cover plate 100, and the other end is communicated with a left port of the push-type volume chamber 700.
The second communication chamber 802 is provided at a position on the left portion of the contact plane where the push-type volume chamber 700 is located. The third communicating chamber 803 is disposed at a lower right position of the contact plane where the push-type volume chamber 700 is located, one end of the third communicating chamber 803 is communicated with the outside through the upper cover plate, and the other end is communicated with a right port of the push-type volume chamber 700.
The operation of the gas circuit of the anesthesia respirator with a fixed volume chamber of the present invention will now be described with particular reference to figures 1 and 2.
Fresh gas supplied to the patient by the anesthesia machine and gas exhaled by the patient flow in these tortuous passageways, which passageways the gas flows in and the direction of flow is controlled by the control system of the anesthesia machine. The following description will be made of a gas flow in a meandering passage by taking a mechanical control mode as an example.
First, fresh gas with anesthetic flows into the channel through the fresh gas inlet 902, through the second communication chamber 802, and to the inhalation check valve 401. The pressure of the fresh gas itself opens the inspiration check valve 401 to the inspiration port 905 and into the patient's lungs through the Y-site of the breathing circuit connected to the patient. Fresh gas circulates internally within the lungs, absorbing oxygen and displacing carbon dioxide, while anesthetic gases also enter the patient's body. After the preset inspiration time of the anesthesia machine is reached, the anesthesia machine is converted into an expiration phase, the patient starts to exhale, and the expired gas only flows to the expiration port 906 through the breathing pipeline because the inspiration one-way valve 401 is closed at the moment. The exhalation port 906 communicates with the exhalation check valve 402, and the exhalation check valve 402 is opened by the exhaled air and flows into the third communicating chamber 803, and the exhaled air flows into the pusher volume chamber 700 through the third communicating chamber 803.
The exhalation gas constantly fills the push-up volume chamber 700, and because the push-up volume chamber 700 is large enough, all exhalation gas can be accommodated, no additional airbag is needed for assistance, and the pressure of the patient during exhalation is reduced. When the expiration of the patient is finished and the expiration is changed into inspiration, the expired gas reaches the driving gas inlet 901, the system outputs the driving gas oxygen or air, the driving gas enters the first communicating cavity 801 from the driving gas inlet 901, and the first communicating cavity 801 is communicated with the push-type volume cavity 700. The drive gas enters the tortuous path of the push-to-volume chamber 700 through the first communicating chamber 801. Since the pressure of the drive gas is greater than the gas pressure that the patient exhales at the time of expiration and has reached the drive gas inlet 901, the exhaled gas is pushed by the drive gas to flow back.
The drive gas and the exhalation gas flow in reverse out of the drive volume 700 through the third communication chamber 803 to the exhalation check valve 402. The canister inlet 904 is provided in the third communicating chamber 803, and since the expiration check valve 402 is closed at this time, the drive gas and the expiration gas flow into the canister 500 from the canister inlet 904. The carbon dioxide absorbent in the canister 500 filters out the carbon dioxide in the exhaled breath. The canister outlet 903 is provided in the second communicating chamber 802, and the exhaled gas and the driving gas after carbon dioxide absorption enter the fresh gas passage from the canister outlet 903, are mixed with the fresh gas that continuously flows in, and flow into the patient's lungs again from the inhalation check valve 401. The process is repeated in this way, and the patient is controlled to complete the inspiration and expiration processes. Thereby realizing anesthesia and supporting ventilation for the patient during the operation.
As described above, the exhaled gas reaches the driving gas inlet 901 after passing through the exhalation check valve 402, fills all the tortuous gas passages from the exhalation check valve 402 to the driving gas inlet 901, and is then pressed into the absorption canister 500, and the space of the tortuous gas passages is large enough to fully contain the exhaled gas of the patient. Since this portion of the tortuous gas path serves the same function as the previously described folded bladder, a portion of the push-to-reply volume chamber 700 of the present invention may replace the previously described folded bladder.
Therefore, the utility model provides an anesthesia respirator gas circuit with fixed volume chamber can needn't adopt tangible bellows and folding bag part, is replaced by having the volume chamber of pushing away the double entry the same with bellows and folding bag effect. Can solve the defects of large occupied space of the anesthesia breathing circuit and large resistance to be overcome.
Claims (10)
1. Anesthesia respirator gas circuit with fixed volume chamber, its characterized in that, anesthesia respirator gas circuit includes: a first communicating cavity (801), a second communicating cavity (802), a third communicating cavity (803) and a push type volume cavity (700);
the first communicating cavity (801), the second communicating cavity (802), the third communicating cavity (803) and the push type volume cavity (700) are integrated in a contact plane of an upper cover plate (100) and a lower cover plate (200) of an anesthesia respirator through a groove between the upper cover plate (100) and the lower cover plate (200);
the push-type volume cavity (700) is of a bow-shaped longitudinal folding structure, the push-type volume cavity (700) is arranged in the middle of the contact plane, the first communication cavity (801) is arranged in the upper position of the contact plane where the push-type volume cavity (700) is located, one end of the first communication cavity (801) is communicated with the outside through the upper cover plate (100), and the other end of the first communication cavity is communicated with the left port of the push-type volume cavity (700); the second communication cavity (802) is arranged at the left part of the contact plane of the push-type volume cavity (700); the third communicating cavity (803) is arranged at the right lower position of the contact plane where the push type volume cavity (700) is located, one end of the third communicating cavity (803) is communicated with the outside through the upper cover plate, and the other end of the third communicating cavity is communicated with the right port of the push type volume cavity (700).
2. The anesthesia ventilator circuit with a fixed volume chamber of claim 1, further comprising: an intake port (905) and an intake check valve (401);
the air suction port (905) is arranged at the lower end air vent of the second communication cavity (802), and the air suction one-way valve (401) is arranged between the second communication cavity (802) and the air suction port (905), so that fresh air flows into the air suction port (905) through the air suction one-way valve (401) and enters the lung of the patient through the air suction port (905).
3. The anesthesia ventilator circuit with a fixed volume chamber of claim 1, further comprising: an exhalation port (906), an exhalation one-way valve (402);
the expiration port (906) is arranged at a lower vent of the third communicating chamber (803), and the expiration check valve (402) is arranged between the third communicating chamber (803) and the expiration port (906), so that gas expired by the patient flows into the compound volume chamber (700) through the expiration check valve (402).
4. The anesthesia ventilator circuit with a fixed volume chamber of claim 1, further comprising: a fourth communication chamber (804);
the fourth communicating cavity (804) is arranged between the second communicating cavity (802) and the third communicating cavity (803), is positioned at the lower end of the push-type volume cavity (700), and is separated from the second communicating cavity (802) and the third communicating cavity (803) through inner walls.
5. The anesthesia ventilator circuit with fixed volume chamber of claim 4, further comprising: an APL valve (403); the APL valve (403) is arranged at the upper end of the fourth communication cavity (804).
6. The anesthesia ventilator circuit with fixed volume chamber of claim 4, further comprising: a manual ball connecting port (110);
the manual ball connecting port (110) is connected with the lower end of the fourth communicating cavity (804), and the manual ball connecting port (110) is used for connecting a manual ball.
7. The anesthesia ventilator circuit with a fixed volume chamber of claim 1, further comprising: a manual-automatic switch (300);
the manual-automatic switch (300) is arranged between the first communication cavity (801) and the push type volume cavity (700), and the manual-automatic switch (300) is used for communicating the first communication cavity (801) and the push type volume cavity (700).
8. The anesthesia respirator circuit with a fixed volume chamber of claim 1, further comprising: a fresh gas inlet (902);
the fresh gas inlet (902) is arranged at an upper end vent of the second communication cavity (802), and fresh gas enters the second communication cavity (802) through the fresh gas inlet (902).
9. The anesthesia respirator circuit with a fixed volume chamber of claim 1, wherein the upper cover plate (100) is provided with a pressure sampling port A (601), an oxygen sampling port (602), a pressure sampling port B (603), and a pressure sampling port C (604);
the pressure sampling port A (601), the pressure sampling port B (603) and the pressure sampling port C (604) are used for acquiring gas pressure at different positions in the gas circuit of the anesthesia respirator, and the oxygen sampling port (602) is used for acquiring oxygen content at a preset position in the gas circuit of the anesthesia respirator.
10. The anesthesia ventilator circuit with a fixed volume chamber of claim 1, further comprising: an absorber tank inlet (904), an absorber tank outlet (903);
the absorption tank inlet (904) is arranged in the third communicating cavity (803), the absorption tank outlet (903) is arranged in the second communicating cavity (802), gas in the third communicating cavity (803) enters the absorption tank (500) through the absorption tank inlet (904), after the absorption tank (500) absorbs carbon dioxide, the gas is discharged from the absorption tank outlet (903), and the discharged gas enters the second communicating cavity (802) through the absorption tank outlet (903).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320511856.XU CN218833334U (en) | 2023-03-16 | 2023-03-16 | Anesthesia respirator gas circuit with fixed volume cavity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320511856.XU CN218833334U (en) | 2023-03-16 | 2023-03-16 | Anesthesia respirator gas circuit with fixed volume cavity |
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| CN218833334U true CN218833334U (en) | 2023-04-11 |
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| CN202320511856.XU Active CN218833334U (en) | 2023-03-16 | 2023-03-16 | Anesthesia respirator gas circuit with fixed volume cavity |
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Effective date of registration: 20230630 Address after: Building 2A, No. 77, Jinke South 2nd Road, Jinniu Hi tech Industrial Park, Chengdu, Sichuan 610036 Patentee after: Aerospace Changfeng Medical Technology (Chengdu) Co.,Ltd. Address before: Aerospace CNC building, No. 51, Yongding Road, Haidian District, Beijing 100039 Patentee before: BEIJING AEROSPACE CHANGFENG Co.,Ltd. |
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